#!/usr/bin/env python3
# EnergyPlus, Copyright (c) 1996-2025, The Board of Trustees of the University
# of Illinois, The Regents of the University of California, through Lawrence
# Berkeley National Laboratory (subject to receipt of any required approvals
# from the U.S. Dept. of Energy), Oak Ridge National Laboratory, managed by UT-
# Battelle, Alliance for Sustainable Energy, LLC, and other contributors. All
# rights reserved.
#
# NOTICE: This Software was developed under funding from the U.S. Department of
# Energy and the U.S. Government consequently retains certain rights. As such,
# the U.S. Government has been granted for itself and others acting on its
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# Software to reproduce, distribute copies to the public, prepare derivative
# works, and perform publicly and display publicly, and to permit others to do
# so.
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# modification, are permitted provided that the following conditions are met:
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# Attempt to automatically change the version number of all idf and imf files in a repo
# Two arguments: old version number and new version number

import json
import sys
from pathlib import Path

EPJSON_INDENT = 4  # Note, this essentially standardizes our indent for EpJSON files


def usage() -> None:
    print(
        """Call this script with three command line arguments:
 $ change_version.py <path to repo> <old version number> <new version number>
 $ change_version.py /repos/eplus 8.7 8.8"""
    )


# check the command line argument status
if len(sys.argv) != 4:
    print("Invalid command line arguments")
    usage()
    sys.exit(1)

# store the command line arguments since they appear valid so far
repo = Path(sys.argv[1]).resolve()
v_old = sys.argv[2]
v_new = sys.argv[3]

# folders to search
idf_folders = [
    Path("testfiles"),
    Path("performance_tests"),
    Path("datasets"),
    Path("testfiles") / "BasicsFiles",
]

# walk across the idf and imf files
for extension in ("*.idf", "*.imf"):
    for folder in idf_folders:
        this_dir = repo / folder
        if not this_dir.exists():
            continue
        for path in this_dir.rglob(extension):
            try:
                file_data = path.read_text(encoding="utf-8", errors="ignore")
            except OSError:
                continue  # skip unreadable files

            file_data = file_data.replace(f"Version,{v_old}", f"Version,{v_new}")
            file_data = file_data.replace(f"VERSION,{v_old}", f"Version,{v_new}")

            path.write_text(file_data, encoding="utf-8")

# handle epJSON files
for folder in idf_folders:
    this_dir = repo / folder
    if not this_dir.exists():
        continue
    for path in this_dir.rglob("*.epJSON"):
        try:
            file_data = path.read_text(encoding="utf-8", errors="ignore")
        except OSError:
            continue

        json_data = json.loads(file_data)
        json_data["Version"]["Version 1"]["version_identifier"] = v_new

        path.write_text(
            json.dumps(json_data, indent=EPJSON_INDENT),
            encoding="utf-8",
        )

# then walk across all the unit test files too
unit_dir = repo / "tst" / "EnergyPlus" / "unit"
if unit_dir.exists():
    for path in unit_dir.rglob("*.cc"):
        try:
            file_data = path.read_text(encoding="utf-8", errors="ignore")
        except OSError:
            continue

        file_data = file_data.replace(f"Version,{v_old}", f"Version,{v_new}")
        file_data = file_data.replace(f"VERSION,{v_old}", f"Version,{v_new}")

        path.write_text(file_data, encoding="utf-8")
